Its true that bolts are about 1k each but thats why you bake them. In your particular example this can be your high poly, and a simple cylinder as your low poly
Yea true.... but I gave a link and recommendation with consideration to Maya, and and a maya plug in... but that is a great example... but whats that like 2500-tris for a bolt? Ktools would be faster and more optimized way to go though.... cheers